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To the Editor: Highly pathogenic avian influenza (HPAI) viruses have caused considerable economic losses to the poultry industry and poses potential threats to animal and human health Since 2003, influenza A(H5N1) viruses with a hemagglutinin (HA) gene derived from A/goose/Guandong/1/96–like viruses have become endemic to 6 countries (Bangladesh, China,(More)
Since 2003, the highly pathogenic avian influenza (HPAI) H5N1 has become a serious problem in animals and an increasing threat to public health. To develop effective vaccines for H5 HPAI in chickens, virus-like particles (VLP) were produced using a baculovirus expression system. The particles comprised hemagglutinin (HA) alone (HA-VLP) or HA in combination(More)
During surveillance programs in Korea between January 2006 and March 2011, 31 H7 avian influenza viruses were isolated from wild birds and domestic ducks and genetically characterized using large-scale sequence data. All Korean H7 viruses belonged to the Eurasian lineage, which showed substantial genetic diversity, in particular in the wild birds. The(More)
Outbreaks of avian influenza A virus infection, particularly the H5N1 strains that have affected birds and some humans for the past 15 years, have highlighted the need for increased surveillance and disease control. Such measures require diagnostic tests to detect and characterize the different subtypes of influenza virus. In the current study, a simple(More)
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